Changing motherboard and processor

As the title says, I wanna change my motherboard processor, and insert an SSD aswell while keeping the old harddrive.

Was wondering if I need to perfom a new reinstall on windows or if I can just transfer windows itself to the SSD and then just keep going. I was also wondering if my windows install will messup if I insert my new motherboard due to new BIOS.

Its always a good idea to fresh install when changing motherboards. A fresh install will minimize any issues that could arise from different hardware configurations. I've also heard that Windows setup detects an SSD and optimizes Windows for use with the SSD.

You should also keep in mind, an OEM license for Windows is not be transferable to a new motherboard. The motherboard is the one component that constitutes a new machine. OEM installs are bound to the motherboard they are activated on.